Warhammer 40,000: Space Marine Pack

Check out the award winning Warhammer franchise from the original front-line battlefield RTS of Dawn of War through the Space Marine mission to hold the Imperial Forge from the Orks. Each faction has a compelling story and exciting action, making the Warhammer 40,000 universe one you'll want to experience.

Plus, play the Retribution multiplayer for FREE starting now through Sunday at 1PM Pacific Time.If you already have Steam installed you can click here to install or play. If you don't have Steam, you can download it here.

New weapons, the Traitor Legion Pack and Emperor's Elite Pack are now available! Step into the armor of a relentless Space Marine and use a combination of lethal and deadly weapons to crush overwhelming Ork forces.

Updates to Warhammer 40,000 Space Marine have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Grenades- Reduced the number of starting grenades from 2 to 1 (with the Favor of the Armory perk, players start with 2)- Players are able to pick up grenade drops, to a maximum of 2 (or 4 with perk)- Added to the existing cooldown between throwing grenades

The evil gods of Chaos tend to use fear and the promise of power immortality to motivate their warriors, but it turns out all they really need is an experience system and a linear series of unlocks. THQ are setting out to prove this with a new lump of paid DLC for Space Marine's recently added co-op survival mode, Exterminatus.

Exterminatus added two survival maps to Space Marine for free recently. Many Orks were slain. Much honour was gained in the eyes of the Emperor. Many badass assault packs were unlocked. The new Chaos Unleashed pack will cast you as the forces of Chaos, and will pit you against waves and waves of Imperial Guardsmen and Orks in new arenas. The pack also includes three multiplayer maps, Habs Ablaze, Station Tertius and Aquila Canyon. The pack will cost 800 Microsoft Points / £7.99 and will arrive in December.

THQ announce that they will also be selling Salamander, Alpha Legion, Legion of the Damned and Blood Angel skins at the hefty price of 240 Microsoft Points / £2.39 each.

If you're not tempted by any of this stuff, THQ say that the update will also add a capture the flag mutliplayer mode to Space Marine for everyone for free. A flag seems a little mundane for the Warhammer universe. Capture the Giant Robot Skull might be better, don't you think?

Space Marine has finally received its four player co-op survival mode, Exterminatus. An automatic Steam update should add the mode to the Online section of the Space Marine main menu, and will offer you and four friends two maps on which to trounce hordes and hordes of Orks. I jumped in for five minutes and killed about 115 with nothing but a Heavy Bolter and a big power-armoured booty. Stomp, stomp! Dakka dakka! Weapon unlocked!

Experience earned popping green monsters in survival mode will also count towards your overall multiplayer rank, giving you new weaponry with which to embarrass your enemies, which acts as an unnecessary extra motivation to team up and make a big gooey mess of a charging Ork Waaaagh!